{"action":"created","issue":{"url":"https://api.github.com/repos/tensorflow/tensorflow/issues/15285","repository_url":"https://api.github.com/repos/tensorflow/tensorflow","labels_url":"https://api.github.com/repos/tensorflow/tensorflow/issues/15285/labels{/name}","comments_url":"https://api.github.com/repos/tensorflow/tensorflow/issues/15285/comments","events_url":"https://api.github.com/repos/tensorflow/tensorflow/issues/15285/events","html_url":"https://github.com/tensorflow/tensorflow/issues/15285","id":281217534,"number":15285,"title":"Add kappa coefficient as a new metric?","user":{"login":"hanfeisun","id":922081,"avatar_url":"https://avatars3.githubusercontent.com/u/922081?v=4","gravatar_id":"","url":"https://api.github.com/users/hanfeisun","html_url":"https://github.com/hanfeisun","followers_url":"https://api.github.com/users/hanfeisun/followers","following_url":"https://api.github.com/users/hanfeisun/following{/other_user}","gists_url":"https://api.github.com/users/hanfeisun/gists{/gist_id}","starred_url":"https://api.github.com/users/hanfeisun/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/hanfeisun/subscriptions","organizations_url":"https://api.github.com/users/hanfeisun/orgs","repos_url":"https://api.github.com/users/hanfeisun/repos","events_url":"https://api.github.com/users/hanfeisun/events{/privacy}","received_events_url":"https://api.github.com/users/hanfeisun/received_events","type":"User","site_admin":false},"labels":[{"id":299643928,"url":"https://api.github.com/repos/tensorflow/tensorflow/labels/stat:contributions%20welcome","name":"stat:contributions welcome","color":"009800","default":false},{"id":473173272,"url":"https://api.github.com/repos/tensorflow/tensorflow/labels/type:feature","name":"type:feature","color":"c2e0c6","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2017-12-12T00:42:48Z","updated_at":"2017-12-18T11:41:17Z","closed_at":null,"author_association":"NONE","body":"Currently tensorflow supports using accuracy as a metric for model's performance.\r\n\r\nHowever, for unbalanced datasets, kappa coefficient (https://www.wikiwand.com/en/Cohen%27s_kappa#) is a commonly used metric. Would it be possible to add this one in the model.metrics?"},"comment":{"url":"https://api.github.com/repos/tensorflow/tensorflow/issues/comments/352402781","html_url":"https://github.com/tensorflow/tensorflow/issues/15285#issuecomment-352402781","issue_url":"https://api.github.com/repos/tensorflow/tensorflow/issues/15285","id":352402781,"user":{"login":"facaiy","id":1112263,"avatar_url":"https://avatars3.githubusercontent.com/u/1112263?v=4","gravatar_id":"","url":"https://api.github.com/users/facaiy","html_url":"https://github.com/facaiy","followers_url":"https://api.github.com/users/facaiy/followers","following_url":"https://api.github.com/users/facaiy/following{/other_user}","gists_url":"https://api.github.com/users/facaiy/gists{/gist_id}","starred_url":"https://api.github.com/users/facaiy/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/facaiy/subscriptions","organizations_url":"https://api.github.com/users/facaiy/orgs","repos_url":"https://api.github.com/users/facaiy/repos","events_url":"https://api.github.com/users/facaiy/events{/privacy}","received_events_url":"https://api.github.com/users/facaiy/received_events","type":"User","site_admin":false},"created_at":"2017-12-18T11:41:17Z","updated_at":"2017-12-18T11:41:17Z","author_association":"CONTRIBUTOR","body":"@hanfeisun Hi, I added a very rudimentary implementation of `cohen_kappa` in PR #15443. It is pretty rough as am not sure about the api. Please take a look and comment. Thanks."}}
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